feat!: add launchTestNode utility

[nedsalk]

This PR introduces the launchTestNode utility. The idea is for it to be the way to setup tests for interacting with sway programs, both internally and for our users. It allows for full test isolation by creating a node for each test and disposing of it at the end of the test. Besides the main benefit of test isolation (which is ideal for defending against flaky tests), this tool would also speed up our test suite.
It makes use of TS 5.2 explicit resource management to automatically kill the node it launches and provides a way to tweak wallet states in the genesis block, deploy contracts, as well as lower level settings like the provider options and node options.

This builds on the great work done in #1204.

Usage example:

using launched = await launchTestNode({
  walletConfig: { count: 2 },
  deployContracts: [ 
  {
    deployer: TestContract__factory,
    bytecode: contractBytecode
  }
 ],
});

const {
  contracts: [contract],
  wallets: [wallet1, wallet2],
} = launched;

This could be nicely tied into #1330 where a sample test file that's testing the contract can be added, demonstrating the preferred way of testing sway programs. We can add e.g. vitest as the default framework in the scaffold just so that the developer can run the tests immediately.

Breaking changes

• The account package is not exporting the sleep utility anymore and it has now been moved into the utils package.

closes #1254

[petertonysmith94]

🍏

[danielbate]

[github-actions]

Coverage Report:

Lines	Branches	Functions	Statements
45.41%(-0.75%)	38.46%(-1.15%)	42.19%(-1.08%)	45.18%(-0.8%)

Changed Files:

Ok	File (✨=New File)	Lines	Branches	Functions	Statements
🔴	✨ packages/account/src/test-utils/asset-id.ts	0% (+0%)	0% (+0%)	0% (+0%)	0% (+0%)
🔴	✨ packages/account/src/test-utils/setup-test-provider-and-wallets.ts	0% (+0%)	0% (+0%)	0% (+0%)	0% (+0%)
🔴	✨ packages/account/src/test-utils/test-message.ts	0% (+0%)	0% (+0%)	0% (+0%)	0% (+0%)
🔴	✨ packages/account/src/test-utils/wallet-config.ts	0% (+0%)	0% (+0%)	0% (+0%)	0% (+0%)
🔴	✨ packages/contract/src/test-utils/launch-test-node.ts	0% (+0%)	0% (+0%)	0% (+0%)	0% (+0%)
🔴	✨ packages/utils/src/test-utils/wait-until-unreachable.ts	0% (+0%)	0% (+0%)	0% (+0%)	0% (+0%)
🔴	✨ packages/utils/src/utils/sleep.ts	0% (+0%)	100% (+100%)	0% (+0%)	0% (+0%)